High-efficiency excavator parts High-quality glass fiber Hydraulic Filter Oil suction filter E131-0214 31E3-0595 31E9-0595 31E9-10190

The function of the hydraulic filter

The function of the hydraulic filter is to filter various impurities in the hydraulic system. The main sources are mechanical impurities that remain in the hydraulic system after cleaning, such as scale, casting sand, welding slag, iron filings, paint, paint skin and cotton yarn scraps, and impurities that enter the hydraulic system from outside.

There are many ways to collect pollutants in fluids. Hydraulic filters are made of filter materials to capture pollutants and are called filters. Magnetic filters that use magnetic materials to adsorb magnetic pollutants are called magnetic filters. In addition, there are electrostatic filters, separation filters and so on. In the hydraulic system, any collection of pollutant particles in the fluid is collectively referred to as a hydraulic filter. In addition to the method of using porous materials or wound fine gaps to intercept pollutants, the most widely used hydraulic filters are magnetic filters and electrostatic filters used in hydraulic systems.

After the above impurities are mixed into the hydraulic oil, with the circulation of the hydraulic oil, it will play a destructive role everywhere, seriously affecting the normal operation of the hydraulic system, such as making a small gap (in μm) between the relatively moving parts in the hydraulic filter element. And the throttling holes and gaps are stuck or blocked; destroy the oil film between the relatively moving parts, scratch the surface of the gap, increase the internal leakage, reduce the efficiency, increase the heat, aggravate the chemical action of the oil, and make the oil deteriorate. According to production statistics, more than 75% of the failures in the hydraulic system are caused by impurities mixed in the hydraulic oil. Therefore, it is very important for the hydraulic system to maintain the cleanliness of the oil and prevent the pollution of the oil.